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Verified Reviews for Glass Block Service pros in Malvern, PA

*The Angi rating for Glass Block Service companies in Malvern, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Glass Block Service needs.

*The HomeAdvisor rating for Glass Block Service companies in Malvern, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Glass Block Service needs.

Last update on November 14, 2025

Find Glass block pros in Malvern

D. Karpel Construction

4.79(
65
)
•Approved Pro

D. Karpel Construction

4.79(
65
)
•Approved Pro
Super Service Award
Customers say: True professional
36 years of experience
Free onsite estimate

Karpel Construction is your one stop shop for Windows, Doors, and Siding. We work with a number of manufacturers so your selection of style and product is unsurpassed. You are the leader of your project and I will only add expert suggestion and advice based on experience. With over a decade of experience working for you satisfaction is in evitable!

"Did an excellent job on glass block windows in basement. Prompt estimation and completion of job after windows came in."

Sean M on September 2025

Karpel Construction is your one stop shop for Windows, Doors, and Siding. We work with a number of manufacturers so your selection of style and product is unsurpassed. You are the leader of your project and I will only add expert suggestion and advice based on experience. With over a decade of experience working for you satisfaction is in evitable!

"Did an excellent job on glass block windows in basement. Prompt estimation and completion of job after windows came in."

Sean M on September 2025

Avatar for Alderfer Glass Co.

Alderfer Glass Co.

4.75(
36
)
•Approved Pro

Alderfer Glass Co.

4.75(
36
)
•Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
54 local quotes requested

Alderfer Glass Co. Inc. offers a wide variety of products and services geared towards the homeowner. We offer window and door replacement, replace foggy windows, mirrors, shower doors, furniture glass, custom glass projects and even glass railings. We are well recognized in the Delaware Valley for quality products and personalized designs. Give us a call today!

"Set an appointment, which was easy. The employee showed up on time, evaluated the required repairs, and the company sent us a competitive, adequate quotation by email. I have set up the repair appointment. Once again, the person showed up on time and replaced the faulty cranking mechanism quickly and professionally. Perfect job."

Leo G on November 2023

Alderfer Glass Co. Inc. offers a wide variety of products and services geared towards the homeowner. We offer window and door replacement, replace foggy windows, mirrors, shower doors, furniture glass, custom glass projects and even glass railings. We are well recognized in the Delaware Valley for quality products and personalized designs. Give us a call today!

"Set an appointment, which was easy. The employee showed up on time, evaluated the required repairs, and the company sent us a competitive, adequate quotation by email. I have set up the repair appointment. Once again, the person showed up on time and replaced the faulty cranking mechanism quickly and professionally. Perfect job."

Leo G on November 2023

Appalachian Preservation Services, LLC

No reviews yet

Appalachian Preservation Services, LLC

No reviews yet

Here at Appalachian Preservation we specialize in all things masonry! (New construction, restoration, tuck pointing) Brick, block, or concrete; cosmetic or leakage problems, Appalachian Preservation has you covered!!

Here at Appalachian Preservation we specialize in all things masonry! (New construction, restoration, tuck pointing) Brick, block, or concrete; cosmetic or leakage problems, Appalachian Preservation has you covered!!

R1 Contractors

No reviews yet

R1 Contractors

No reviews yet
9 years of experience

Family owed and Operated business.. Licensed and Insured We take pride in our work ..All jobs have their iwn individual warranty. ..All estimates are free

Family owed and Operated business.. Licensed and Insured We take pride in our work ..All jobs have their iwn individual warranty. ..All estimates are free

Phoenix

No reviews yet

Phoenix

No reviews yet
9 years of experience

We have a large crew of a workers covering every trade. Currently we are offering two forms of financing, Installment loans and Revolving credit lines. With our installment loans we can offer up to 12 months no payments and 0% down.

We have a large crew of a workers covering every trade. Currently we are offering two forms of financing, Installment loans and Revolving credit lines. With our installment loans we can offer up to 12 months no payments and 0% down.

Glass Doctor of Eastern PA

No reviews yet

Glass Doctor of Eastern PA

No reviews yet
13 years of experience

We are a locally owned and operated Glass franchise in the Northeast Philadelphia area. We specialize in give personal service and attention to each customer. All of our Specialist are trained in all areas of the Glazing Field.

We are a locally owned and operated Glass franchise in the Northeast Philadelphia area. We specialize in give personal service and attention to each customer. All of our Specialist are trained in all areas of the Glazing Field.

Avatar for Lockhart Construction LLC

Lockhart Construction LLC

5.00(
2
)

Lockhart Construction LLC

5.00(
2
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Lockhart Construction LLC provides detailed proposals and eliminates "Surprise" bills. Every aspect of your project is carefully examined and detailed in our proposals. We partner with the best in our industry to provide a superior product and customer experience. We accept all major credit cards. From a simple repair, a new kitchen or a full blown home renovation or addition. Lockhart Construction LLC "A Perfect Fit Every Time"

"Jim did an amazing job. His price was very fair and he showed incredible attention to detail. I've been a homeowner for over 30 years and this is hands down the best experience I have ever had with a contractor. I cannot recommend Lockhart construction strongly enough."

Patrick K on April 2021

Lockhart Construction LLC provides detailed proposals and eliminates "Surprise" bills. Every aspect of your project is carefully examined and detailed in our proposals. We partner with the best in our industry to provide a superior product and customer experience. We accept all major credit cards. From a simple repair, a new kitchen or a full blown home renovation or addition. Lockhart Construction LLC "A Perfect Fit Every Time"

"Jim did an amazing job. His price was very fair and he showed incredible attention to detail. I've been a homeowner for over 30 years and this is hands down the best experience I have ever had with a contractor. I cannot recommend Lockhart construction strongly enough."

Patrick K on April 2021

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Glass Block questions, answered by experts

Their thickness depends on application, but most glass walls are typically 3/8 to 3/4 of an inch thick. Although it’s not as common, single panes of glass can also be 1 inch thick.

You can still see vaguely into some types of glass block windows at night. Although there won’t be clear definitions, passersby may still see shapes, shadows, and movement through the glass. If you want complete privacy, consider installing diamond glass block windows rather than the typical clear or wavy glass blocks.

Glass block windows cost about $710 to install, ranging from $460 to $980. The cost factors of installing this type of specialty window include the opening size, design, layout, height, glass block type, installation type, and location. There are many block styles to choose from, including colored, clear, wavy, diamond, and frosted.

Consider the following price ranges of installing glass blocks based on size:

  • 25-by-25 inches: $60–$300

  • 31-by-31 inches: $65–$350

  • 36-by-36 inches: $85–$475

  • 48-by-48 inches: $155–$840

Yes, professionals can install decorative or colored glass block patterns for a unique look.

Heavy glass tends to be more expensive than thin glass because it is stronger and more durable. In most cases, ¼-inch-thick glass is ideal for mirrors, and ⅛-inch-thick glass is ideal for residential windows. Heavier glass isn’t always necessary, and can be more challenging to hang or install. Work with a local window installation pro for replacement or new construction windows.

The Malvern, PA homeowners’ guide to glass block services

From average costs to expert advice, get all the answers you need to get your job done.

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